Invention Publication
- Patent Title: DISPLAY APPARATUS
-
Application No.: US18530688Application Date: 2023-12-06
-
Publication No.: US20240224757A1Publication Date: 2024-07-04
- Inventor: SeoHyun NAM , SeHong PARK , Wonrae KIM , Hyemin PARK , Sejong SEONG
- Applicant: LG Display Co., Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Priority: KR 20220190870 2022.12.30
- Main IPC: H10K59/80
- IPC: H10K59/80 ; H10K59/122 ; H10K59/35
Abstract:
A display apparatus may include a substrate, subpixels, a concave pattern portion, and a reflective portion on the pattern portion. Subpixels include a light emission area including a light emitting layer and a bank in a non-light emission area. A total amount of light emitted from the light emitting layer and output to the substrate satisfies
η
total
=
A
∫
0
sin
-
1
(
n
b
n
OLED
·
1
+
(
h
v
)
2
)
I
OLED
(
θ
)
d
θ
+
B
.
A is a light conversion constant, nOLED is a refractive index of the light emitting layer, nb is a refractive index of the bank, V is a vertical length from an upper surface of the light emitting layer to an ending point of the bank, h is a horizontal length from an end of the light emission area to the ending point of the bank, IOLED(θ) is the amount of light emitted from the inside of the light emitting layer, and B is a total output amount of light without a reflective portion.
η
total
=
A
∫
0
sin
-
1
(
n
b
n
OLED
·
1
+
(
h
v
)
2
)
I
OLED
(
θ
)
d
θ
+
B
.
A is a light conversion constant, nOLED is a refractive index of the light emitting layer, nb is a refractive index of the bank, V is a vertical length from an upper surface of the light emitting layer to an ending point of the bank, h is a horizontal length from an end of the light emission area to the ending point of the bank, IOLED(θ) is the amount of light emitted from the inside of the light emitting layer, and B is a total output amount of light without a reflective portion.
Information query
